Home / 3,191.81-4,404.78-1,775.52

Finding the Fourth Proportional to 3,191.81, 4,404.78 and 1,775.52

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Solution

The fourth proportional to 3,191.81, 4,404.78 and 1,775.52 is: 2,450.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.81 : 4,404.78 = 1,775.52 : x
  2. Step 2: Convert to fraction form
    3,191.81/4,404.78 = 1,775.52/x
  3. Step 3: Cross multiply
    3,191.81x = 4,404.78 × 1,775.52
  4. Step 4: Simplify right side
    3,191.81x = 7,820,774.99
  5. Step 5: Solve for x
    x = 7,820,774.99/3,191.81
  6. Step 6: Final answer
    x = 2,450.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.